fontanelle or fontanel /fon-tə-nelˈ/

1. A membrane-covered gap between the immature parietal bones in the skull of a fetus or infant
2. An opening for discharge (medicine)

• atropisms
• Atropos
• atropous
• at rovers
• ats
• ATS
• Ats
• at sea
• at second hand
• at short notice
• at short stay
• at sight
• at sixes and sevens
• at so many days' sight
• at someone's beck
• at someone's beck and call
• at someone's expense
• at stake
• at stud
• AT&T
• Att.
• at table
• attaboy
• attach
• attachable